Punching-resistant steel assembly, plate-column structure and construction method

By setting up an improvisation-resistant bottom plate and side plate connection on the bottom side of the internal skeleton of the reinforced concrete slab, combined with the expanded perlite block, the shear stress problem of the slab column structure during load transfer is solved, and the improvisation-resistant ability and structural safety of the slab column nodes are improved.

CN120367294APending Publication Date: 2025-07-25NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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Patent Information

Application Number
CN202510756483.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-09
Publication Date
2025-07-25

AI Technical Summary

Technical Problem

When the load is transferred in the existing slab column structure, the periphery of the concrete column is susceptible to shear stress to form cracks, resulting in the punching and cutting failure of the slab column nodes, affecting the safety of the structure.

Method used

An improvisation-resistant bottom plate is installed on the bottom side of the internal skeleton of the reinforced concrete slab, and connected by side plates and anchor bolts to enhance the connection performance between the reinforced concrete slab and the bottom plate. At the same time, an expanded perlite block is installed inside the slab to reduce load and improve shear resistance.

Benefits of technology

The impact shearing capability of the plate column nodes is enhanced, the safety and stability of the plate column structure is improved, the shear stress transmitted to the periphery of the column is reduced, and the overall shearing performance of the structure is enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an anti-punching steel assembly, a plate-column structure and a construction method, and relates to the technical field of plate-column structure.The anti-punching steel assembly comprises an anti-punching bottom plate, side plates and first anchor bolts, the anti-punching bottom plate is arranged on the bottom side of a reinforced concrete plate internal framework, and the reinforced concrete column internal framework penetrates through the anti-punching bottom plate; the side plates are arranged in the circumferential direction of an internal framework of the reinforced concrete column, the side plates are arranged on the top face of the punching-resistant bottom plate and fixedly connected with the top face of the punching-resistant bottom plate, the internal framework of the reinforced concrete plate penetrates through the side plates, and the first anchor bolts are arranged on the top face of the punching-resistant bottom plate and fixedly connected with the top face of the punching-resistant bottom plate. The first anchor bolts are arranged on the sides, away from the reinforced concrete column internal framework, of the side plates, and the anti-punching steel assembly composed of the anti-punching bottom plate, the side plates and the first anchor bolts can improve the shearing resistance of the column peripheral area, so that the anti-punching capacity of the plate-column joint is improved, and then the safety of the plate-column structure is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of slab-column structures, and particularly to an anti-punching steel component, a slab-column structure and a construction method. Background Art

[0002] A slab-column structure is a building structure with a load-bearing system composed of a floor slab and columns. There is no beam under the floor slab, but it is directly connected to the columns. On the one hand, the indoor space is open without the obstruction of beams, making the space appear more spacious and transparent, which is conducive to the flexible layout of the indoor space to meet different usage function requirements. On the other hand, it can reduce the storey height of the building and reduce the occupation of the indoor space by the beams. However, in the existing slab-column structures, when the load (such as self-weight, live load, seismic force) is transmitted from the floor slab to the columns through the floor slab, the concrete around the columns needs to bear the radial and circumferential shear stresses caused by the bending of the slab. Under the action of the shear stresses, principal tensile stresses are generated inside the concrete. Since the tensile strength of the concrete is very small, when the principal tensile stress exceeds the tensile strength of the concrete, cracks are formed and extended along the direction of the principal tensile stress, ultimately leading to the punching failure of the slab-column joint. During the failure, the floor slab will be "punched" and peeled off from the top of the column, forming an inverted cone failure surface around the column, affecting the safety of the slab-column structure. Summary of the Invention

[0003] The purpose of the present invention is to provide an anti-punching steel component, a slab-column structure and a construction method to solve the problems existing in the above-mentioned prior art, improve the anti-punching ability of the slab-column joint, and improve the safety of the slab-column structure.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] The present invention provides an anti-punching steel component, including an anti-punching bottom plate, side plates and first anchor bolts. The anti-punching bottom plate is arranged on the bottom side of the internal skeleton of the reinforced concrete slab, and the internal skeleton of the reinforced concrete column penetrates through the anti-punching bottom plate; the side plates are arranged along the circumferential direction of the internal skeleton of the reinforced concrete column, the side plates are arranged on the top surface of the anti-punching bottom plate and fixedly connected to the top surface of the anti-punching bottom plate, and the internal skeleton of the reinforced concrete slab penetrates through the side plates; the first anchor bolts are arranged on the top surface of the anti-punching bottom plate and fixedly connected to the top surface of the anti-punching bottom plate, and the first anchor bolts are arranged on the side of the side plates away from the internal skeleton of the reinforced concrete column.

[0006] In some embodiments, it further includes second anchor bolts. The second anchor bolts are arranged on the side of the side plates away from the internal skeleton of the reinforced concrete column, and the second anchor bolts are fixedly connected to the side plates.

[0007] In some embodiments, it further includes transverse stiffeners which are arranged on the side plate close to the inner skeleton of the reinforced concrete column, and the transverse stiffeners are fixedly connected to the side plate. The inner skeleton of the reinforced concrete column penetrates through the transverse stiffeners and is fixedly connected to the transverse stiffeners.

[0008] In some embodiments, a plurality of first through holes are formed in the punching shear resistant bottom plate for the inner skeleton of the reinforced concrete column to pass through, and a plurality of second through holes are formed in the side plate for the inner skeleton of the reinforced concrete slab to pass through.

[0009] The present invention also provides a slab-column structure, which includes a reinforced concrete column, an expanded perlite embedded board, and the punching shear resistant steel assembly according to any one of the above. The expanded perlite embedded board includes concrete, an inner skeleton of the expanded perlite embedded board, and expanded perlite blocks arranged on the inner side of the inner skeleton of the expanded perlite embedded board. The punching shear resistant steel assembly is arranged at the junction of the reinforced concrete column and the expanded perlite embedded board. The inner skeleton of the reinforced concrete column penetrates through the punching shear resistant bottom plate, and the inner skeleton of the expanded perlite embedded board penetrates through the side plate.

[0010] In some embodiments, it further includes an EPS module, and the reinforced concrete column is wrapped in the EPS module.

[0011] In some embodiments, the inner skeleton of the expanded perlite embedded board includes upper slab reinforcement and lower slab reinforcement. The expanded perlite blocks are anchored to the upper slab reinforcement through upper anchor bars, and the expanded perlite blocks are anchored to the lower slab reinforcement through lower anchor bars.

[0012] In some embodiments, the EPS module includes a first EPS module and a second EPS module. The first EPS module is arranged above the expanded perlite embedded board, and the second EPS module is arranged below the expanded perlite embedded board. The projections of the first EPS module and the second EPS module on the expanded perlite embedded board coincide.

[0013] In some embodiments, the parts where the projection of the first EPS module on the expanded perlite embedded board does not coincide with the projection of the punching shear resistant steel plate, and the parts where the projection of the second EPS module on the expanded perlite embedded board does not coincide with the projection of the punching shear resistant steel plate are the EPS module cross-slab connection areas. In the EPS module cross-slab connection areas, connecting members are arranged on the opposite edges of the first EPS module and the second EPS module, and the connecting members can detachably connect the first EPS module and the second EPS module.

[0014] The present invention also provides a construction method for the slab-column structure as described in any one of the above, including the following steps: erect the internal skeleton of the reinforced concrete column and pour the reinforced concrete column; set the punching shear steel component, and the internal skeleton of the reinforced concrete column penetrates through the punching shear bottom plate; erect the expanded perlite embedded plate formwork, erect the internal skeleton of the expanded perlite embedded plate on the formwork, and penetrate the internal skeleton of the expanded perlite embedded plate through the side plate; pour the concrete of the expanded perlite embedded plate so that the top of the concrete is flush with the upper edge of the side plate; continue to erect the internal skeleton of the reinforced concrete column on the expanded perlite embedded plate and pour the reinforced concrete column.

[0015] The present invention has achieved the following technical effects compared with the prior art:

[0016] The punching shear steel component provided by the present invention is provided with a punching shear bottom plate on the bottom side of the internal skeleton of the reinforced concrete slab, and the internal skeleton of the reinforced concrete column penetrates through the punching shear bottom plate. The side plate and the first anchor bolts are fixedly connected and arranged on the top surface of the punching shear bottom plate, and the internal skeleton of the reinforced concrete slab penetrates through the side plate. Since the tensile strength of steel is much greater than that of concrete, the punching shear bottom plate is used to assist the reinforced concrete slab in shear resistance. The first anchor bolts improve the connection performance between the reinforced concrete slab and the punching shear bottom plate, so that the reinforced concrete slab and the punching shear bottom plate are stressed together. The side plate helps to improve the stability of the punching shear bottom plate, and the strength of the punching shear bottom plate can be fully exerted. Therefore, the punching shear steel component composed of the punching shear bottom plate, the side plate and the first anchor bolts can improve the shear resistance performance in the area around the column, thereby improving the punching shear capacity of the slab-column joint and further improving the safety of the slab-column structure.

[0017] Furthermore, for the slab-column structure provided by the present invention, by arranging expanded perlite blocks inside the internal skeleton of the reinforced concrete slab, since the expanded perlite blocks are lighter in mass than concrete, the slab weight can be reduced, thereby reducing the load transmitted to the slab-column joint and reducing the shear stress transmitted to the area around the column, so as to further improve the safety of the slab-column structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the structure of the punching shear steel component in an embodiment of this embodiment;

[0020] Figure 2Schematic diagram of the internal skeleton structure of a reinforced concrete column in one implementation manner of this embodiment;

[0021] Figure 3 Schematic diagram of the expanded perlite inlaid panel structure in one implementation manner of this embodiment;

[0022] Figure 4 Schematic diagram of the second EPS module structure in one implementation manner of this embodiment;

[0023] Figure 5 Schematic diagram of the first EPS module structure in one implementation manner of this embodiment;

[0024] Figure 6 Schematic diagram of the EPS module wrapped reinforced concrete column and punching shear resistance component structure in one implementation manner of this embodiment;

[0025] Figure 7 Schematic diagram of the expanded perlite inlaid panel and punching shear resistance component structure in one implementation manner of this embodiment;

[0026] Figure 8 Schematic diagram of the punching shear resistance steel component structure in one implementation manner of this embodiment;

[0027] Figure 9 Schematic diagram of the slab-column structure construction method in one implementation manner of this embodiment;

[0028] In the figure: 1 - punching shear resistance steel component; 11 - punching shear resistance bottom plate; 111 - first through hole; 12 - side plate; 121 - second through hole; 13 - first anchor bolt; 14 - transverse stiffening rib; 2 - reinforced concrete column; 21 - internal skeleton of the reinforced concrete column; 3 - expanded perlite inlaid panel; 31 - internal skeleton of the expanded perlite inlaid panel; 311 - upper steel bars of the slab; 312 - upper anchor bars; 313 - lower steel bars of the slab; 314 - lower anchor bars; 32 - expanded perlite block; 4 - EPS module; 41 - first EPS module; 42 - second EPS module; 43 - connecting piece; 431 - extension body; 432 - first clamping groove; 433 - second clamping protrusion. Specific implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] The object of the present invention is to provide an impact-resistant steel component, a slab-column structure and a construction method, so as to solve the problems existing in the above-mentioned prior art, improve the punching shear resistance of the slab-column joint, and improve the safety of the slab-column structure.

[0031] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Embodiment 1

[0033] This embodiment provides an impact-resistant steel component 1, as Figure 1 shown, including an impact-resistant bottom plate 11, a side plate 12 and a first anchor bolt 13. The impact-resistant bottom plate 11 is arranged on the bottom side of the internal skeleton of the reinforced concrete slab, and the internal skeleton 21 of the reinforced concrete column penetrates through the impact-resistant bottom plate 11. The side plate 12 is arranged along the circumference of the internal skeleton 21 of the reinforced concrete column. The side plate 12 is arranged on the top surface of the impact-resistant bottom plate 11 and fixedly connected to the top surface of the impact-resistant bottom plate 11. The internal skeleton of the reinforced concrete slab penetrates through the side plate 12. The first anchor bolt 13 is arranged on the top surface of the impact-resistant bottom plate 11 and fixedly connected to the top surface of the impact-resistant bottom plate 11. The first anchor bolt 13 is arranged on the side of the side plate 12 away from the internal skeleton 21 of the reinforced concrete column. Since the tensile strength of steel is much greater than that of concrete, the impact-resistant bottom plate 11 is used to assist the reinforced concrete slab in shear resistance. The first anchor bolt 13 improves the connection performance between the reinforced concrete slab and the impact-resistant bottom plate 11, so that the reinforced concrete slab and the impact-resistant bottom plate 11 are stressed together. The side plate 12 helps to improve the stability of the impact-resistant bottom plate 11, and the strength of the impact-resistant bottom plate 11 can be fully exerted. Therefore, the impact-resistant steel component 1 composed of the impact-resistant bottom plate 11, the side plate 12 and the first anchor bolt 13 can improve the shear resistance performance in the area around the column, thereby improving the punching shear resistance of the slab-column joint and further improving the safety of the slab-column structure.

[0034] In some embodiments of this embodiment, the impact-resistant steel component 1 further includes a second anchor bolt. The second anchor bolt is arranged on the side of the side plate 12 away from the internal skeleton 21 of the reinforced concrete column and fixedly connected to the side plate 12. By setting the second anchor bolt, the connection performance between the reinforced concrete floor slab and the side plate 12 is improved, and the side plate 12 is prevented from peeling off from the reinforced concrete floor slab under the action of shear force, further improving the shear resistance performance in the area around the column, thereby improving the punching shear resistance of the slab-column joint.

[0035] In some embodiments of this embodiment, the second anchor bolt is also arranged on the side of the side plate 12 close to the internal skeleton 21 of the reinforced concrete column and fixedly connected to the side plate 12. By setting the second anchor bolt, the connection performance between the reinforced concrete column 2 and the side plate 12 is improved, and the side plate 12 is prevented from peeling off from the reinforced concrete floor column under the action of shear force, thereby improving the shear resistance performance of the joint core area of the slab-column joint.

[0036] In some embodiments of the present embodiment, such as Figure 8 shown, the punching shear resistant steel assembly 1 further includes a transverse stiffening rib 14. The transverse stiffening rib 14 is disposed on one side of the side plate 12 close to the internal skeleton 21 of the reinforced concrete column, and the transverse stiffening rib 14 is fixedly connected to the side plate 12. The internal skeleton 21 of the reinforced concrete column penetrates through the transverse stiffening rib 14 and is fixedly connected to the transverse stiffening rib 14, improving the connection performance between the reinforced concrete column 2 and the side plate 12, avoiding the separation of the side plate 12 from the reinforced concrete floor column under the action of shear force, thereby improving the shear resistance of the joint core area of the slab-column joint.

[0037] In some embodiments of the present embodiment, such as Figure 1 shown, a plurality of first through holes 111 are formed in the punching shear resistant bottom plate 11. The first through holes 111 are used for the internal skeleton 21 of the reinforced concrete column to pass through. A plurality of second through holes 121 are formed in the side plate 12. The second through holes 121 are used for the internal skeleton of the reinforced concrete slab to pass through. By passing the internal skeletons of both the reinforced concrete column 2 and the reinforced concrete slab through the punching shear resistant steel assembly 1, the cooperative stress-bearing performance of the punching shear resistant steel assembly 1 and the slab-column joint is improved.

[0038] In some embodiments of the present embodiment, such as Figure 1 shown, the shape of the punching shear resistant bottom plate 11 is the same as the cross-sectional shape of the reinforced concrete column 2. Specifically, the cross-sectional shape of the reinforced concrete column 2 can be T-shaped, L-shaped, cross-shaped, square, and rectangular. The position of the reinforced concrete column 2 can be a corner column, an edge column, and an interior column.

[0039] Embodiment Two

[0040] The present embodiment provides a slab-column structure, such as Figures 1 to 8 shown, including a reinforced concrete column 2, an expanded perlite inlaid panel 3, and a punching shear resistant steel assembly 1. The expanded perlite inlaid panel 3 includes concrete, an internal skeleton 31 of the expanded perlite inlaid panel, and expanded perlite blocks 32 disposed inside the internal skeleton 31 of the expanded perlite inlaid panel. The punching shear resistant steel assembly 1 is disposed at the junction of the reinforced concrete column 2 and the expanded perlite inlaid panel 3. The internal skeleton 21 of the reinforced concrete column penetrates through the punching shear resistant bottom plate 11, and the internal skeleton 31 of the expanded perlite inlaid panel penetrates through the side plate 12. By disposing the expanded perlite blocks 32 inside the internal skeleton of the reinforced concrete slab, since the expanded perlite blocks 32 are lighter in mass than concrete, the slab weight can be reduced, thereby reducing the load transmitted to the slab-column joint to reduce the shear stress transmitted to the column perimeter area, thereby further improving the safety of the slab-column structure.

[0041] Further, the expanded perlite block 32 is a block material made by mixing expanded perlite particles (a kind of lightweight and porous particles made by high-temperature expansion of perlite ore) with a gelling material (such as cement, gypsum, resin, etc.) or a binder, and then through processes such as pressing and curing. Its internal retains the porous structure of perlite, and has characteristics such as light weight, heat preservation, and heat insulation. By arranging the expanded perlite block 32 inside the inner skeleton of the reinforced concrete slab, the heat preservation and heat insulation performance and sound insulation performance of the floor slab can also be improved.

[0042] In some embodiments of this embodiment, the expanded perlite block 32 can be square, rectangular, or polygonal, and can be specifically determined according to the shape of the gap formed between the steel skeletons, so as to facilitate embedding the expanded perlite block 32 into the inner skeleton 31 of the expanded perlite embedded panel during construction.

[0043] In some embodiments of this embodiment, as Figures 4 to 6 shown, the slab-column structure further includes an EPS module 4. The reinforced concrete column 2 is wrapped in the EPS module 4. The EPS module 4 (expandable polystyrene foam plastic module) is a foam plastic block material made from expandable polystyrene beads as raw materials, which is precisely formed through a mold after heating and foaming. Its internal is a honeycomb-shaped closed-cell structure, and has characteristics such as light weight, heat preservation, and easy processing. On the one hand, it can be used as a formwork for the reinforced concrete column 2 to facilitate the pouring of the reinforced concrete column 2. On the other hand, it does not need to be removed after pouring and becomes a part of the reinforced concrete structure, improving the heat preservation and heat insulation performance and sound insulation performance of the building.

[0044] In some embodiments of this embodiment, as Figures 4 to 6 shown, the EPS module 4 wrapping the reinforced concrete column 2 can be an edge column, a corner column, or a middle column, and the cross-sectional form can be T-shaped, L-shaped, cross-shaped, square, or rectangular.

[0045] In some embodiments of this embodiment, as Figure 3 shown, the inner skeleton 31 of the expanded perlite embedded panel includes upper slab reinforcement 311 and lower slab reinforcement 313. The expanded perlite block 32 is anchored to the upper slab reinforcement 311 through upper anchor bars 312, and the expanded perlite block 32 is anchored to the lower slab reinforcement 313 through lower anchor bars 314, so that the expanded perlite block 32 is fixedly connected to the inner skeleton 31 of the expanded perlite embedded panel, improving the integrity of the expanded perlite embedded panel 3.

[0046] In some embodiments of this embodiment, as Figures 4 to 6As shown, the EPS module 4 includes a first EPS module 41 and a second EPS module 42. The first EPS module 41 is arranged above the expanded perlite inlay panel 3, and the second EPS module 42 is arranged below the expanded perlite inlay panel 3. The projections of the first EPS module 41 and the second EPS module 42 on the expanded perlite inlay panel 3 coincide, ensuring the continuity of the EPS module 4 wrapped around the reinforced concrete column 2 above and below the expanded perlite inlay panel 3, so as to facilitate the transfer of force within the EPS module 4 wrapped around the reinforced concrete column 2.

[0047] In some embodiments of this embodiment, as Figures 4 to 6 shown, the parts where the projection of the first EPS module 41 on the expanded perlite inlay panel 3 does not coincide with that of the punching shear resistant steel assembly 1, and the parts where the projection of the second EPS module 42 on the expanded perlite inlay panel 3 does not coincide with that of the punching shear resistant steel assembly 1 are the EPS module 4 cross-panel connection areas. In the EPS module 4 cross-panel connection areas, connecting members 43 are arranged at the opposite edges of the first EPS module 41 and the second EPS module 42. The connecting members 43 can detachably connect the first EPS module 41 and the second EPS module 42 to improve the sealing performance and integrity of the connection between the first EPS module 41 and the second EPS module 42.

[0048] Specifically, as Figures 4 to 6 shown, the second EPS module 42 is provided with an extension body 431 in the cross-panel connection area, and a second clamping convex body 433 is arranged at the top of the extension body 431. The first EPS module 41 is provided with a first clamping groove 432 that cooperates with the second clamping convex body 433. Through the design of the cooperating convex body and groove, the sealing performance and integrity of the connection between the first EPS module 41 and the second EPS module 42 are improved, ensuring the pouring quality of the internal reinforced concrete column 2.

[0049] Embodiment III

[0050] This embodiment provides a construction method for a slab-column structure. As Figure 9 shown, it includes the following steps:

[0051] Erect the internal skeleton 21 of the reinforced concrete column within the second EPS module 42 and pour the reinforced concrete column 2;

[0052] Set up the punching shear resistant steel assembly 1, and the internal skeleton 21 of the reinforced concrete column penetrates through the first through hole 111 on the punching shear resistant bottom plate 11;

[0053] Erect the formwork of the expanded perlite inlay panel 3, erect the internal skeleton 31 of the expanded perlite inlay panel on the formwork, and penetrate the internal skeleton 31 of the expanded perlite inlay panel through the second through hole 121 on the side plate 12;

[0054] The expanded perlite block 32 is arranged inside the inner skeleton of the reinforced concrete slab. The expanded perlite block 32 is anchored to the upper slab reinforcement 311 through the upper anchor bar 312, and the expanded perlite block 32 is anchored to the lower slab reinforcement 313 through the lower anchor bar 314;

[0055] Pour the concrete of the expanded perlite embedded panel 3 so that the top surface of the concrete is flush with the upper edge of the side plate 12;

[0056] Continue to erect the inner skeleton 21 of the reinforced concrete column on the expanded perlite embedded panel 3;

[0057] For the edge columns and corner columns, connect the first EPS module 41 and the second EPS module 42 through the connector 43; for the middle columns, arrange the first EPS module 41 on the upper part of the expanded perlite embedded panel 3, and the lower surface of the first EPS module 41 abuts against the upper surface of the expanded perlite embedded panel 3;

[0058] Pour the reinforced concrete column 2 of the upper layer.

[0059] Specific examples are applied in the present invention to elaborate the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An impact-resistant steel component, characterized in that, including a punching shear resistant bottom plate, which is arranged on the bottom side of the internal skeleton of the reinforced concrete slab, and the internal skeleton of the reinforced concrete column penetrates through the punching shear resistant bottom plate; a side plate, which is arranged along the circumferential direction of the internal skeleton of the reinforced concrete column, is arranged on the top surface of the punching shear resistant bottom plate and fixedly connected to the top surface of the punching shear resistant bottom plate, and the internal skeleton of the reinforced concrete slab penetrates through the side plate; and, a first anchor bolt, which is arranged on the top surface of the punching shear resistant bottom plate and fixedly connected to the top surface of the punching shear resistant bottom plate, and is arranged on the side of the side plate away from the internal skeleton of the reinforced concrete column.

2. The punching-resistant steel component according to claim 1, wherein, It further includes a second anchor bolt, which is arranged on the side of the side plate away from the internal skeleton of the reinforced concrete column and is fixedly connected to the side plate.

3. The punching-resistant steel component according to claim 2, characterized in that, It further includes a transverse stiffening rib, which is arranged on the side of the side plate close to the internal skeleton of the reinforced concrete column and is fixedly connected to the side plate, and the internal skeleton of the reinforced concrete column penetrates through the transverse stiffening rib and is fixedly connected to the transverse stiffening rib.

4. The punching-resistant steel component according to claim 1, characterized in that, A plurality of first through holes are formed in the punching shear resistant bottom plate, and the first through holes are used for the internal skeleton of the reinforced concrete column to pass through. A plurality of second through holes are formed in the side plate, and the second through holes are used for the internal skeleton of the reinforced concrete slab to pass through.

5. A slab-column structure, characterized in that, including a reinforced concrete column; an expanded perlite embedded board, which includes concrete, an internal skeleton of the expanded perlite embedded board, and expanded perlite blocks arranged on the inner side of the internal skeleton of the expanded perlite embedded board; and, the punching shear resistant steel assembly according to any one of claims 1 to 4, which is arranged at the joint of the reinforced concrete column and the expanded perlite embedded board, the internal skeleton of the reinforced concrete column penetrates through the punching shear resistant bottom plate, and the internal skeleton of the expanded perlite embedded board penetrates through the side plate.

6. The slab-column structure according to claim 5, wherein, It further includes an EPS module, and the reinforced concrete column is wrapped in the EPS module.

7. The slab-column structure according to claim 5, characterized in that, The internal skeleton of the expanded perlite embedded board includes upper slab steel bars and lower slab steel bars, and the expanded perlite blocks are anchored to the upper slab steel bars through upper anchor bars and are anchored to the lower slab steel bars through lower anchor bars.

8. The slab-column structure according to claim 6, wherein The EPS module includes a first EPS module and a second EPS module. The first EPS module is arranged above the expanded perlite embedded board, and the second EPS module is arranged below the expanded perlite embedded board. The projections of the first EPS module and the second EPS module on the expanded perlite embedded board coincide.

9. The slab-column structure according to claim 8, characterized in that, The parts where the projection of the first EPS module on the expanded perlite embedded panel does not coincide with the punching shear resistant steel plate, and the parts where the projection of the second EPS module on the expanded perlite embedded panel does not coincide with the punching shear resistant steel plate are the EPS module cross-panel connection areas. In the EPS module cross-panel connection areas, connecting members are provided at the opposite edges of the first EPS module and the second EPS module, and the connecting members can detachably connect the first EPS module and the second EPS module.

10. A construction method for a slab-column structure according to any one of claims 6 to 9, characterized in that It includes the following steps: Erect the internal skeleton of the reinforced concrete column and pour the reinforced concrete column; Set the punching shear resistant steel assembly, and the internal skeleton of the reinforced concrete column penetrates through the punching shear resistant bottom plate; Erect the formwork of the expanded perlite embedded panel, erect the internal skeleton of the expanded perlite embedded panel on the formwork, and penetrate the internal skeleton of the expanded perlite embedded panel through the side plate; Pour the concrete of the expanded perlite embedded panel to make the top of the concrete flush with the upper edge of the side plate; Continue to erect the internal skeleton of the reinforced concrete column on the expanded perlite embedded panel and pour the reinforced concrete column.